DOI: 10.1016/j.jag.2013.03.003
Scopus记录号: 2-s2.0-84888212465
论文题名: Rectilinear building roof contour extraction based on snakes and dynamic programming
作者: Fazana A ; J ; , Pozb A ; P ; D
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2013
卷: 25, 期: 1 起始页码: 1
结束页码: 10
语种: 英语
英文关键词: Building extraction
; Dynamic programming
; Image analysis
; Snakes
Scopus关键词: algorithm
; building
; image analysis
; landscape
; optimization
; roof
; Serpentes
英文摘要: This paper presents a method for extracting building roof contours from digital images collected over urban landscapes. The proposed method utilizes an energy function based on snakes that represents building roof contours in digital images and is optimized with a dynamic programming (DP) algorithm. Because most building roof contours are characterized by rectilinear sides that intercept at right angles, appropriate geometric constraints are enforced in the previously reported snake-based energy function. The main advantage of using the DP algorithm for optimizing the proposed snake-based energy function is its better radius of convergence compared to that typically obtained in the original solution based on variational approaches. Experimental evaluation, which included visual inspections and numerical analyses, was performed using real data, and the obtained results demonstrated that the proposed method has significant potential for successfully extracting building roof contours from digital images. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79845
Appears in Collections: 气候变化事实与影响
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作者单位: University of São Paulo State, Brazil; Department of Cartography, University of São Paulo State, Brazil
Recommended Citation:
Fazana A,J,, Pozb A,et al. Rectilinear building roof contour extraction based on snakes and dynamic programming[J]. International Journal of Applied Earth Observation and Geoinformation,2013-01-01,25(1)